Glossary

A
annotation	Used in schematic diagrams to annotate lines and components. Annotations may be entered manually, derived from an attribute, or placed by means of a text template as part of an annotations catalog.
ATS	Annotation Tag Style. In schematic diagrams; employed when creating a text template.
attribute	Characteristics of an object, such as length, flow rate, etc. Also referred to as property.
B
boundary	A two or three dimensional reservation of space, used to separate or define portions of an area.
branch	Routed object that is connected to another routed object at a mid-point between nodes.
branching	The act of routing from an existing routable. The routing starts at a point between two nodes, not from a node.
C
catalog	A collection of parts and parts component catalog data. There are several types of catalog, such as a specifications catalog, standard catalog.
child	A status defining the genealogical relationship between two objects.
closed loop run	A run whose ends are joined to each other.
compass	A tool for defining direction.
component group	Used in schematic diagrams. Two or more connected components assembled to make up an individual assembly that can be stored and placed from a catalog
conduit line	A mechanism for identifying and organizing Conduit routes and the components placed in them. A line ID.
connector	Location on a resource (components, parts, item reservation, etc.) used to attach other resources. Connectors can be created, modified or deleted.
constraint	A geometric or dimension relation between two elements.
contour	The physical shape of an area.
coordinates	The XYZ locations.

D
definition	The physical characteristics of an element. Changing the definition changes the shape of an element.
discrete values	Values, usually of an attribute, that are pre-defined. Instead of entering a value you select a value in a drop-down box.
distribution system	An object used for organizing and grouping elements, mainly routables and resources, that distribute some commodity (fluid, air, etc.).
document	The file in which a drawing or a project is created, sometimes also referred to as model. Document is the preferred terminology.
downcomer	The legs of a hanger.

E
element	Any of the features contained in a document, such as component, line, etc.

F
fabrication	Used in HVAC Design. A contiguous grouping of connected HVAC parts. Analogous to spools in Piping Design or welded assemblies in Tubing Design.
face	A surface on an object, usually item reservation or part.
feature dictionary	The document in which object classes are defined.

G
grab	A Windows feature for clicking and dragging.
graphic representation	A geometric representation of an object. An object may have multiple graphic representations.

H
HVAC line	A mechanism for identifying and organizing HVAC routes and the components placed in them. A line ID.
hanger	Supports used for routing cables, pipes, etc.
hole	An opening through an object.

I
I & C loop	Stands for Instrumentation & Control Loop. It is an object used for grouping and organizing instrumentation and control objects.
intel_a	A Windows directory in which this application is stored and executed by default.
item reservation	A two or three dimensional reservation of space, in which one or more objects can be placed.

L
line ID	A mechanism for identifying and organizing routes and components. Conduit, HVAC, Piping, Raceway,Tubing lines and I & C loops are line IDs.

M
master	The controlling object in a relationship. Such a relationship can be created between some objects.
member	Belonging to or part of, as in belonging to a line ID.
mirror

N
node	Symbols that mark the end of segments in routables. They can be used to move or manipulate segments.
nozzle	A piece of pipe welded to a piece of equipment or vessel with a flanged end to which a pipe can be connected.

O
object class	An object class is the classification or type of object.
offset plane	A command used to define a reference plane.

P
parent	A status defining the genealogical relationship between two objects.
part	The geometric representation of a 3D object.
part types	Object classes.
path reservation	A two or three dimensional reservation of space, in which assembly lines, conveyor belts, etc., can later be created.
pathway	Path reservation.
piping line	A mechanism for identifying and organizing piping routes and the components placed in them. A line ID.
plane manipulator	A geometric tool to change the orientation, alignment, plane and location of a plane that is to be created.
properties	Characteristics of an object, such as length, flow rate, etc. Also referred to as attribute.

R
raceway line	A mechanism for identifying and organizing raceway routes and the components placed in them. A line ID.
reference plane	A plane that has been defined as an aid to performing certain functions, such measuring distance.
routable	Anything that can be routed, typically: run, path reservation and boundary.
run	A two or three dimensional reservation of space, in which pipes and parts can later be placed.

S
scaling	An operation that resizes features to a percentage of their initial sizes.
set point	The alignment point for a routable, such as run or path reservation, for which a section is defined. The set point determines, for example, whether the routing line drawn for a boundary represents the bottom left, bottom right, or bottom center of the boundary. There are three possible set points for a boundary and nine possible set points for a path reservation and run.
slave	The following object in a relationship. Such a relationship can be created between some objects.
snap	Join, as in snap together. Also snap to a grid, in which the position of an object is automatically adjusted to a grid.
space reservation	A two or three dimensional reservation of space, in which equipment, pipes and parts can later be placed.
specifications tree	A graphic display of the organizational structure of all elements in a document.
spool	A grouping of objects. All objects in a spool must be contiguous and connected to each other.
standard	A collection of specifications.
support line	A location on a routable used as a reference point for routing when the centerline is not used. It is also used in placing parts. The support line is defined by the set point (see above).
system	A mechanism for organizing and grouping elements, mainly routables and resources.

T
tubing line	A mechanism for identifying and organizing tubing routes and the components placed in them. A line ID.
turn angle	The angle formed between two lines.


W
waveguide line	A mechanism for identifying and organizing waveguide routes and the components placed in them. A line ID.
welded assembly	Used in Tubing Design. A contiguous grouping of connected tubing parts. Analogous to spools in Piping Design and fabrication in HVAC Design.